US608727A - Pyroxylin compound - Google Patents

Pyroxylin compound Download PDF

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US608727A
US608727A US608727DA US608727A US 608727 A US608727 A US 608727A US 608727D A US608727D A US 608727DA US 608727 A US608727 A US 608727A
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pyroxylin
lactamid
matter
composition
pyroxylin compound
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    • CCHEMISTRY; METALLURGY
    • C06EXPLOSIVES; MATCHES
    • C06BEXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B23/00Compositions characterised by non-explosive or non-thermic constituents
    • C06B23/04Compositions characterised by non-explosive or non-thermic constituents for cooling the explosion gases including antifouling and flash suppressing agents

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Liquid Crystal Substances (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Description

NHED Sterne.
JOHN II. STEVENS, OF NEWARK, NEW JERSEY, ASSIGNOR TO THE CELLULOTD COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NFHV JERSEY.
ereoxvun cowiso UN o SPECIFICA'EION forming part of Letters latent'ld'o. 608,727, dated August 9, 1898.
Application filed April 6, 1898. Serial No. 878,639. (No specimens.) I
To all whom it may conccrn:
Be it kn own that 1, JOHN ll. STEVENS, of the city of Newark, county of Essex, and State of New Jersey, have invented a certainnew and useful Pyroxylin Composition of Matter, of which the following is a specification.
Pyroxylin compositions of matter are subject to acid decomposition unless protected tionof matter which is capable of being used for all purposes to which these compounds are applied and which at the same time is not subject to aciddecomposition;- In the absence of pigments itis also capable of forming highly transparent eiiects. This new composition of matter consists of 'pyroxylin associated with iactamid, either with or with: out solvents or other substances usually employed in these compounds. The lactamid can be readily combined with all solutions of pyroxylin by reason of its'ready solubility in alcoholic solvents. -Where acetone solutions are used, as in smokeless-powder manufactnre, the lactamid can be introduced in wood I spirit solutions.
In treating pyroxylin'which is to be used in a dry state it can be dissolved in water 'or other liquid which is a non-solvent of the pyroxylin. hen closely combined with pyroxylin or its mixtures lactamid, imparts to the pyrox lin or its com .ounds the property of rco 1 sisting acid decomposition.
As to proportions, I find that from one percent. to two per cent, by weight, of the lactamid. to the amount of pyroxylin is sufficient.
The two per cent. gives the strongest preserving power. Even less than one per cent.
can be used with success in cases where the compound is not to be subjected to severe conditions of treatment, such as prolonged or high heat. More than two per cent. can be used, but it is unnecessary and apt to result in a weakening or discoloring of the material as the amountis increased. Ido not confine myself to any proportions of the lactamid.
The nature and methods of making pyroxylin and its compounds are well known and require no further description.
Lactamid is well known to chemists as the amid of lactic acid, its-chemical formula being Ol-l,CH(O.lI).GO.NI-I,. It is best propared by acting on the lactic esters with gas! 'eous ammonia. -Other methods of produc-. tion are known, but the above is to be preferred.
Having fully instructed the operator in my invention, whatlclaim, and desire to secure by Letters Patent, is-- 1. Anew composition of matten consisting of pyroxylin and lactainid.
2. Anew composition of matter consisting of pyroxylin and a solvent of the same assoc'iated with lactamid. I
A new transparent composition of matter containing pyroxyli-n and lactamid.
. JGHN ll. STEVENS.
Witnesses: ABRAHAM Mauritius, .7. W. FAIToN'rn.
US608727D Pyroxylin compound Expired - Lifetime US608727A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3429755A (en) * 1967-12-14 1969-02-25 Aerojet General Co Nitrocellulose-base propellant containing ethylene cyanohydrin
US20030153167A1 (en) * 1992-11-06 2003-08-14 Semiconductor Energy Laboratory Co., Ltd. Laser processing apparatus and laser processing process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3429755A (en) * 1967-12-14 1969-02-25 Aerojet General Co Nitrocellulose-base propellant containing ethylene cyanohydrin
US20030153167A1 (en) * 1992-11-06 2003-08-14 Semiconductor Energy Laboratory Co., Ltd. Laser processing apparatus and laser processing process

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